Oxford Dominoes: Sherlock Holmes: The Sign of Four

Miss Mary Morstan has a strange story to tell.Since her father disappeared, she has received a large pearl through the post on the same day, every year, for six years. Who is sending them? And what about her father's paper with the words 'The Sign of Four' written on it?
Sherlock Holmes alone can solve these mysteries.

OXFORD DOMINOES:

Four-level graded readers series, perfect for reading practice and language skills development at upper-primary and lower-secondary levels.
A full-colour, entertaining, interactive readers series, that offers students an enjoyable reading experience while building their language skills through integrated language activities, projects, and contextualized grammar work.
Dominoes makes reading motivating and fun for students, while making it easy for you to develop their reading and language skills either in or outside the classroom.